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Polk Audio db691

6x9" 3-Way dB Series Marine Grade Coaxial Speakers

In Stock
|

List price $179.99

$99.99

with warranty

You Save: $80.00 (44.45%)

Order within 22 hrs 41 mins to ship 4/24

Arrives by Wednesday, Apr. 30 to zip 98109

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In Stock

Arrives by Wed, Apr. 30

Bundled Savings with this Product

=

Get 25% off Sound Dampening Speaker Kit with Purchase!

For a limited time, get 25% off of the NVX SDSK2 Speaker Kit with a qualifying pair of speakers! Sound dampening will eliminate rattles, insulate against heat, and also improve the sound and output of your speakers!

3.75

9126

100

Polk Audio db691

$99.99

+

25% OFF

NVX SDSK2

$14.99

Special Price $11.24 ($14.99 if purchased separately)

NVX SDSK2

• Eliminates Road Noise
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 1)

Combined Total Price

$111.23

You Save $3.75

Exceptional Quality and Versatility

Step up your vehicles audio performance with Polk Audio's revolutionary db691's. Cutting edge technology has allowed for an efficient speaker that has ability to accurately reproduce music like you have never heard before. A precise balance of materials including the Silk/Polymer Dome tweeter and Mica Cone woofer enable smooth roll-off and quick response at any volume. The rubber surround adds to bass response as well as increases the lifetime of the speaker under any conditions. Being marine certified, the Polk db691's will surprise you with its versatility and ability for use in many applications. The high-efficiency loudspeaker means less power is necessary for the same quality output. The revamped db Series delivers that perfect Polk Audio performance and durability like never before.

Speaker Features:

  • 6" x 9" 3-way Speakers (Marine Certified)
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Impedance: 4 ohms
  • Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
  • 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear and detailed highs
  • Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
  • Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
  • ABS Grilles, computer optimized and based on exclusive MOMO designs
  • Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
  • Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
  • Acoustically inert stamped steel basket
  • Flat Spider for faster, longer excursion linear motion
  • Flexible woven tinsel leads sewn directly into Spider for greater reliability
  • Frequency Response: 35-22,000 Hz
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Product History:

Polk Audio db691 thumbnail
(newest, current model)
Polk Audio db690 thumbnail
(previous model, replaced by Polk Audio db691)

Speaker Specifications

Series
db (Polk)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 9"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
3-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Silk-Polymer Composite
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polymer/Mica Composite
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
100 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
93 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
35 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
3-3/16"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
3-3/4"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
8-1/2 x 5-3/4 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
67%
4 Star
31%
3 Star
2%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.8
Features
4.5
Design
4.6
Usability
4.8

Luke

Texas

Overall
Durability
Value
Features
Design
Usability

Best deal out there

March 5, 2012

I make a lot of ice chest radios. I have tried almost every marine speaker out there. These by far have the most bass and sound the best. I have to add extra latches to the lids to keep them from rattling.

2 of 2 found this helpful

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DragonMan

Houston,TX

Overall
Durability
Value
Features
Design
Usability

Polk Audio db691

June 19, 2011

Great sound and easy to install.

2 of 2 found this helpful

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MegaJaydin

Chattanooga, Tn

Overall
Durability
Value
Features
Design
Usability

Superb and Well Balanced

March 25, 2011

The Polks are well balanced with good bass, great mids, and almost to much treble. The sound clarity sometimes makes me jump because the music sounds so real... I think what's that outside and it's actually the speaker producing quality sound. Speaker does need an amp if bass and VoLuMe is desired, otherwise these things almost sound like subs with superb SQ. Still the treble is a little to much when turned up, but can be tuned down. I strongly suggest this speaker to anyone looking for an awesome full range speaker. The only 6x9s that are better are competition series which cost much more. Excellent value!!

2 of 2 found this helpful

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wes

OK

Overall
Durability
Value
Features
Design
Usability

GOOD QUALITY

October 31, 2010

Great sound all around, able to handle the power, I would recommend

2 of 2 found this helpful

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Travis

Ortonville, MN

Overall
Durability
Value
Features
Design
Usability

Good Speaker for the money

February 4, 2010

I thought these where very nice speakers for the price. Play very loud, loud enough were the tweeters start to hurt your ears. Occasionally they can make a little noticeable mirror shake and its only off of head unit power. Even while pounding on them hard haven't heard much bottoming out. Solid design, easy hook up and look pretty cool to.

2 of 2 found this helpful

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mtrwrks

PA

Overall
Durability
Value
Features
Design
Usability

Good product

January 17, 2010

I've always been a fan of Polk as an all around quality speaker, and these speakers maintain the level of quality that I've grown to expect over the years

2 of 2 found this helpful

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RAYMOND

DAKOTA CITY, NE

Overall
Durability
Value
Features
Design
Usability

Quality Speakers Great Price

December 13, 2009

These 6x9s are driven by a Sony Xplod 55x4 RMS amp. They sound great. The bass rivals a sub box. I have never had 6x9s that sound as nice as these. No disappointments

2 of 2 found this helpful

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Jack

Southwest florida

Overall
Durability
Value
Features
Design
Usability

Polk db 5.25" component speakers

August 31, 2009

These speakers have really clear sound quality and some pretty decent bass for component speakers. The only problem i had with them was the durability, the soldering that wired the diode to the positive connector was a little weak and broke on two of four of these speakers. But i should also mention that i was pretty rough on these when i first got them. But all four of them are holding up and kickin great after 6 months so far. And after these speakers i've sworn by polk audio ever since in the rest of my car audio purchases

2 of 2 found this helpful

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Teeman

Tacoma,WA

Overall
Durability
Value
Features
Design
Usability

Polk Audio db691

June 25, 2009

I installed the db691 in my motorcycle saddlebags an i'm pushing them with a hawg-wired 1502 amp with 75 watts rms each side. The speakers bump pretty good and i'm very satified

2 of 2 found this helpful

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big dwayne

nokesville

Overall
Durability
Value
Features
Design
Usability

Polk Audio db691

June 14, 2009

These speakers are the best for the money in my opinion, i would deffentaly recommend these to anyone. I have had these for six months in my daily driver and i push them hard everyday and have not had any problems.

2 of 2 found this helpful

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Cheapskate2

Greenville-Spartanburg, SC

Overall
Durability
Value
Features
Design
Usability

I Love the Polks

March 18, 2009

I installed a pair in the rear deck of my Mustang and the sound is awesome - plenty of highs and much more bass than I ever thought possible from just a pair of 6x9s. I have them hooked up to a Profile amp and they shake the whole car. The guy that says he gets no bass from these in his blazer must have them hooked up out of phase (pos and neg backwards) because the bass from these is incredible - I've decided not to bother with a sub now that I got these. I have only had a short while so can't speak as to the long term durability yet so I rate that part only 3 for "unsure".

2 of 2 found this helpful

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TeamATOMiK.com

Seattle, WA

Overall
Durability
Value
Features
Design
Usability

Polk Audio All The Way!

February 1, 2009

If you are looking for the biggest, clearest, HiFi bang for your buck, you have to go for Polk Audio. I have db5251's (also available from SonicElectronics.com) in my front doors, the db691's in the rear deck, and a Polk db1222 subwoofer enclosure in the truck. I'm pushing 1600 watts RMS (100 watts into each db691) and the sound is amazing! Perfectly clear, excellent reproduction and imaging, outstanding HD HiFi that only Polk can produce for such a low price$.

2 of 2 found this helpful

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Earl

West Monroe, LA

Overall
Durability
Value
Features
Design
Usability

Polk Audio db691

April 21, 2014

I ordered the 6/12 speakersfor my Harley. This product is so Awsome, The quality of the speakers,the durability of the product is just amazing, I'm riding at speeds of 75 to 80 miles an hour. It sounds like i'm sitting in den at home listening to my surround sound speakers. Very satisfied. Order actually arrived before delivery date. Completely saitsfied with speakers. I would definetly order again from this company.

0 of 0 found this helpful

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Creighton

South Pasadena, CA

Overall
Durability
Value
Features
Design
Usability

Crisp

February 9, 2014

These speakers were recommended by the guys at Sonic. NICE JOB!! these are exactly what my system was looking for. If you need a great set of speakers that produce crisp highs and solid mids then these are the speakers you want. Pair them with a good amp and sub, you got a winner. Thanks to Polk for another excellent product. Thanks to Sonic for the recommendation!! You have my business.

0 of 0 found this helpful

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Beaver

California

Overall
Durability
Value
Features
Design
Usability

Polk Audio DB691

January 7, 2014

Absolutely remarkable sound. Existing head is inexpensive JVC but sound quality is fantastic. Very pleased so purchased a Polk active sub as well.

0 of 0 found this helpful

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Donald

Marrero, LA

Overall
Durability
Value
Features
Design
Usability

Superior Sound Quality

January 6, 2014

I have finished installing a complete set of Polk speakers in my Town & Country van. (2) db691's in the back, (2) db691's in the doors, and (2) db521's in the dash. The sound is like a "Concert Hall" with the rich bass from the 691's, and the clarity and highs from the 521's. This is still coming from the standard "Head / Stereo" unit from the Town & Country. I have had several vehicles with "Premium" sound systems - but have not heard this kind of clear deep sound from any of them. These speakers are the "BEST" value for the price.

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DLB

Marrero, La.

Overall
Durability
Value
Features
Design
Usability

Premium Sound

September 23, 2013

I replaced the stock speakers in my Town & Country Van - and find these to be exceptional. The sound is superb, from the originals. I would reccomend these speakers for anyone looking for "Premium Sound" from their vehicles.

0 of 0 found this helpful

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finatic

shelton WA

Overall
Durability
Value
Features
Design
Usability

good speakers for the money

September 19, 2013

Have tried a few different 6x9s unless you spend 30.00 to 200.00 more you wont find a much nicer sounding speaker

0 of 0 found this helpful

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Faruk

Mozambique

Overall
Durability
Value
Features
Design
Usability

Great Speakers.

August 29, 2013

I love this speakers they are playing together with a pair of Alpine SPR-69, they sound great, no problems with the combo. Bought those instead of a another pair of Alpines because they seem to have more bang for the money, but those sensitivity ratings are questionable the catalog only states 93db not db/m, so you never now what they really are.

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fuzzmonkey1

Morris, MN

Overall
Durability
Value
Features
Design
Usability

Solid speakers!

April 24, 2013

Good strong sound for not running an amp to them.. I wired them myself in about 20 mins with no problems at all. Great Price!! High quality bass, mid and tweeter for cheap! Not a necessity to run with an amp just my jvc head unit.

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $5.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $29.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

Xscorpion USP-69 6" x 9" Speaker Baffles

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $5.99

Product Summary

Manufacturer

Model Number

db691

UPC

747192112790

Weight

10.00lbs

Internal SKU

db691

Internal Product ID

9126

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio db691

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